The Birthday Honours 2011 for the Commonwealth Realms were announced on 7 June 2011 in New Zealand and 11 June 2011 in United Kingdom to celebrate the Queen's Birthday of 2011.

Sir Augustine Thomas O'Donnell, KCB, Secretary to the Cabinet and Head of the Home Civil Service

For information about the various honours, see Queen's Service Order and New Zealand Order of Merit.

The Queen's Birthday Honours (or King's Birthday Honours) is a part of the British honours system, being a civic occasion on the celebration of the Queen's Official Birthday in which new members of most Commonwealth Realms honours are named. The awards are presented by the reigning monarch or head of state, currently Queen Elizabeth II. All Royal honours conferred by Her Majesty are made official by publication in supplements to the London Gazette. The lists are also published by the quality broadsheet newspapers, most notably The Times. Honours have been awarded on the monarch's birthday since at the latest 9 November 1908, the birthday of King Edward VII (1901–1910). After that year the monarch's official birthday was moved to 1, 2 or 3 June, on which date the Birthday Honours lists have subsequently been published.

Kay Alexander is a British regional television newsreader, appearing on BBC Midlands Today.

Alexander is originally from Surrey and read English in the Midlands at the University of Birmingham. She initially worked for the BBC at Pebble Mill for BBC Radio 4 (where she worked on You and Yours, Checkpoint and Woman's Hour). She has worked on Midlands Today since the 1970s, at one time being a main anchor, but now mainly presents lunchtime bulletins. In October 2003, the Royal Television Society presented her with a Special Award to mark thirty years in television.

Alexander is Chairman of the Birmingham Assay Office - the first woman to hold this position, a former Director of the Birmingham Hippodrome and a Patron of Acorns Children's Hospice.